Brake for railway-vehicles.



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J. E. SGHUMGHER.

BRAKE FOB RAILWAY VEHICLES.

y APPLICATION FILED JUNE 29, 1908.

91 6,614. Patented Mar. so, 1909.

2 SHEETS-SHEET 2.

JAMES EDWARD SCHUMAOHER, OF YORK, ENGLAND.

BRAKE FR RAILWAY-VEHICLES.

Specification of Letters Patent.

Patented March 30, '1909.

Application iled .Tune 29, 1908. Serial No. 440,922.

To all whom t may concern:

Be it known that l, J'Aiins Eiiwxrn Sciif- 'lor the brakes and operatingmechanism in MACHER, subject oi the iing oi Prussia,

residing` at 68 Vyner street, llaxby Road, 'I York in the county oi' orkEngland have i 1 l i i. 2 invent-eu new and usel'ul .improvements in iBrakes lor Bailwayehicles, oi which the l y t, b, the axle boxes; c, c,the pendent brackets in which the axle boxes work; d, d, the axles; e,c, the wheels mounted upon the axles.

following is a specification.

This invention relates to improvements in brakes for railway wagons andother vehicles, hereafter termed the vehicle.

The object of this invention is to provide f a brake which may bebrought into operay wheels c, c,

tion on either side oi the vehicle by hand,

that is, the brake may be brought into action i by a hand lever tronieither side ot the vehicle, and by a second and similar lever thrown outoi action when required on either side of the vehicle, irrespective ofthe side l Y 7i, li, are shown 'hxed at or about the center ol thevehicle, but this positionniay he varied from which it has been applied.Further, and when required, in addition to the hand arrangement,provision may be iiiade l'or the brake or brakes to be appliedautomatically,

lor example, say, by a cord, the ends of which are respectivelyconnected to the engine and brake van, or by lever or other connectionswith the buliers, so that when the latter are pressed inward the brakeor brakes will be applied to the wheel or wheels, and when the buffersresuine their normal positions, the brake or brakes will be withdrawntroni the y wheel or wheels.

The hereinafter described brake provides suflicient pressure on thewheels l'or general braking purposes by its niere weight as soon as thereleasing lever allows it to `l'all into Contact with the wheels.Further, the pressure can be increased by the brake lever, and the brakecan also be instantly and readily released l'roni its contact with theWheels and locked in a raised position.

In the drawings hereunto annexed, al-v though the invention is shownapplied to a railway wagon, l would have it understood that its use isnot limited thereto, but it may be adapted for other purposes andapplied to road or other vehicles.

Figure 1. is a part side elevation ol' ai at Fig'. 3.

railway wagon with the brakes in an oil position. Fig. 2. a sideelevation oll the same, but with the brakes oii. Fig. 3. a lan of same.Fig. 4. a part elevation ol" evers and links showingl their positionwhen the brakes are in contact with the Wheels, but not locked thereon.Fig. 5. an

elevation of link connections shown on the Q spectively g, g, /1, a, andt, fi. brackets are lixed at a suitable distance troni upper part ol'Fig. b. Fig. G. an enlarged elevation ol slotted lever or aiin employedAll the above mentioned parts are ol' ordinary and well knowncoiistruction.

To the fran'iework a and between the are lixod a number ol pendentbrackets, say, l'or example, three on each side ol the vehicle. 'lhc btickets are marked rc- 'llie pendent each pair ol' wheels. The centerbrackets as circun'istances require. lt is also shown longer inlength,-but not necessarily softhan the other two brackets g, g, and i,i. ln each ol' the pendent brackets y, g, and t, i, provided an axialbearing, and two olA such bearings are provided in cach ol the centerbrackets lz', z. The number el bearings7 however, in each bracket may bevaried as occasion requires. A brake block is pro vided loi' each wheelc oi' each side ol the vehicle. Each brake block y is provided with alug or projection 7L' on its upper portion by which it is connected toone ot the brackets g, g, or i, i, by, say, a pair of suspension linksl. Each brake blocky is also provided with a second lug or piollection'la at its rear or back portion for purposes to bc hereafter described."ihe brake blocks j are moved simultaneously iu or out ol' action.

ln the axial bearings ol' the center brackets l, b, are respectivelymounted the shal'ts n and o. The shaft, hereafter termed thc brake shaltln, is mounted in the upper bearing", and thc second shaft, hereaftertermed the releasing shaft o,"" is mounted in the. second bearing. Theshafts n and o are made to extend across the wagon, as shown At thelower end of the slotted lever S, is mounted a rectangular bar y),-which extends across the wagoin*provided with circular ends which passthrough the lower bearings and upon which the inner ends ol tbcconnecting levers (l, g1, are mounted. The outer end ot' each ol' thelevers g, g1, is enlarged and turned downward at or about lll) a rightangle to its main portion. s The turned down portion fr oli' each leverg, or g1, forms a bearing through which passes the adjustable bolt s.The bolt s is provided with a bifurcated end t adapted to engage withand be secured to the lug or projection m of the brake block. On theopposite end ol the bolt s are mounted the lock nuts u, i), wherebyafter the position of a brake block has been adjusted as required, itmay be irinly secured to a lever g, or g1, by the said nuts beingscrewed respectively against each side o a turned down portion r. Theinner` end ol each ofthe levers g1 is prolonged beyond its point ofccnnection with the bar p to form a lever w, by which it is attached bylinks n; to a lever fr; mounted and iiXed u )on the brake shalt a.

The connections of tie said shafts, levers,

:its left hand end.

said parts, it enables the brakes to be applied and links is clearlyshown in a detail view at Fig. 5.

On a pin e iiXed to the framework a are mounted the brake lever l andthe releasing lever 2. The brake lever l is connected on one side ol'the wagon by links 3 to a lever l mounted and 'liked upon the brakeshaft n, and the releasing lever 2, at the same side of the wagon bylinks 5 to a lever 6 mounted and r'ixed to the releasing shaft o. On theopposite side of the wagon the brake lever l and releasing lever 2 aremounted and fixed respectively upon the brake shaft n and releasingshalt o with their outer ends in the opposite direction, thus dispensingwith the use of the links 3 and 5, and levers el and 6. That is to say,il the levers l and 2 on one side of the wagon point to its right handend, the levers on the opposite side will point to By dispensing withthe or released from either side ol` the wagon, and it also enables thelevers l and 2 to be moved simultaneouslyT up or down on both of itssides, thus indicating to the shunter by the position of the leverswhether the brakes are on or oil. At the same time in a series ol'wagons, a uniform position ci the levers is obtained, with what areknown as crosscornered7 brakes, that is, the said levers l and 2 foroperating the brakes, will be to the right of a man when lacing thewagon side.

On the releasing shaft o (Figs. l, 2, and G) is mounted one or moredouble ended cams 7 At Fig. 3, one cam piece 7 is shown at or about thecenter ot the wagon, but when required, a cam may be provided at eachend of the releasing shalt 0 on the outside or the 'framework (L. rl`hecam 7 is arranged to Work within a lever 8 slotted and shaped shown atFig. 6.

the cam 7V to lock the brakes and their oper ating mechanism in eitheran on or oil position. The lever S is provided with a lonv slot hole 9having two enlarged curved ane inclined recesses 10 andrll lormedtherein.

This lever forms an im- 5 portant feature oi this invention as itenables The parallel portion of the slot hole 9 is made in two widths,that is, the parallel portion ol the slot hole above the cam 7,-as shownat Fig. 6,-is of such a width as to allow the brake shaft n to slidefreely therein. Below the recesses 10 the parallel portion ol the slothole is made wide enough to permit the boss of the cam to slide freelytherein. The recess ll is below and in communication with the enlargedportion oi' the slot hole. rThe recesses 10 are formed by cutting orotherwise removing a portion oi the lever on each side of the slot hole9. rThe recesses thus formed are partly inclined and partly curved so asto 'lit the inclined and curved ends oi the cam 7. rlhe lower recess llis formed by removing curved and .inclined portions from the lever 8 oneach side oi the enlarged portion ol' the slot hole and also at itsbottom. The recesses l() and ll are ol such a size as to permit the campiece 7 being turned, say, one ourth,-more or less,-ol a revolutiontherein. The lever 8 is bifurcated at its lower end to enable it to be,say, bolted to the bar p. lf desired, the slotted lever 8 may be mountedand iiXed upon bar p or its circular ends by means of a boss and a key.

After the brake shalt fa and releasing shaft o have been passed throughthe slot hole 9, the bil'urcated end l2 is 'fixed in position upon thebar p. rline upper loop portion ot lever 8 acts as a guide for themovement of the inner ends of the levers q, g1. lt will be seen that therecesses l() and 1l are curved in the direction of the rotation oi thecam 7.

The brake lever 1,-the longest lever and nearest to the side oi theframework @,-and the releasing lever 2,-the outer and shorter of the twolevers-are arranged to work between suitable vertical guides not shownin the drawings, but of ordinary construction.

The action oll the apparatus is as follows Vllhen the brakes are oil thebrake lever l is raised to the horizontal position, shown at Fig. l.rlhe releasing lever 2 is then at its lowest position. rThe slottedlever 8, levers g, gl, w, fy, 4, and links r, 3, are all raised to thehighest position. T he recess 11 in the slotted lever is then raised toenable the cam 7 to be turned therein at an angle across the slot hole,as shown at Figs. l and 6, thereby enabling its curved and tapering endsto engage with the curved and inclined portion ol' the recess forholding the said parts in a raised. position, and at the same timelocking the brakes in the off position. lis soon the releasing lever 2is raised to the position shown at Fig. Ll, the cam 7 will have beenturned out ol recess ll into a vertical position. As soon as the ends ofthe cam are moved clear of the curves and. inclines ol the recesses theslotted lever 8, by the weight of the brakes and levers and linksattached thereto, is made to descend until the brakes y', j, are incontact with the periphery of the Wheels, and the top of the slot hole 9will then be Within a short distance of the upper' sur face of the brakeshaft u. iilhen the slotted lever 8 descends the brake leverl 1 issimultaneously carried down with the levers q, q1, and as the latterturn on the circular ends of the bar p, and their outer ends move out-Ward in opposite directions, the. brake blocks j, y', are carried towardthe wheels e, The Weight of the operating mechanism is sufficient toprovide the necessary pressure on the Wheels for general brakingpurposes. In this position the braking lever is down While the releasinglever 2 is raised.

Vilhen it is required to put extra pressure upon .the brakes and to lockthem in the on position, the brake lever l is pressed farther downward,and simultaneously the slotted lever 8 is caused by levers y, w, andlink and by the connection of lever 8 with bar p, to further descenduntil cam 7 is opposite to the recess 10. The cam 7 is then caused t0turn,-by the descent of the lever 2 and Weight of the parts connectedthere- With,-in the recess l() into the angular position across the slothole 9,-as shown atliigs. 2 and 6,With its curved and tapering ends inengagement With the curved and inclined portions of the said recess forfirmly locking the brakes y', y', in the on position. Both of the leversl and 2 are then down.

To release and withdraw the brakes, the releasing lever 2 is firstraised for turning the camk 7 into a vertical position for allowing theslotted lever 8 to slide freely when the brake lever 1 is raised to theposition shown at Fig. l. When the brake lever l reaches this position,the releasing lever 2 falls as soon as the cam 7 is free to enter therecess l1 and to turn therein, While the said lever 2 continues todescend to its lowest position. The brakes j, j, are retained and lockedin the ott position by the cams engagement With curved and inclinedportions of the recess 1l.

In the above described arrangement the releasing and brake levers aredescribed as being operated by hand, but when requiredf-though notnecessarilyT so,-thcy may be automatically applied when a train of'Wagons is fitted With this apparatus. The releasing levers and also thebrake levers,- if so desired ,-are then provided with one or more loopsor eyes through which a cord is made to pass from the engine to thcguards van in a zig-Zag direction, tirst, through an eye fixed to theupper portion of each Wagon, then through the loop or eye of thereleasing lever, and back to a second eye at the top of the wagon, fromwhich it passes to the eyes of a second Wagon, and so on throughout thefull length of the train. @ne or both ends of the cords may be securedto one or more Windlasses on either the engine or guards van, or both.A. continuous or jointed cord may be employed for cach side of theWagon, or both cords may bc on one side of the same. The cord on oneside is attached to the releasing levers, and the cord on the other sideis attached to the brake levers. The cord on the releasing levers may beslacker than thc other one. Should the wagons break away from theremaining ones, say, in going up or down an incline, the cord attachedto the brake levers will iirst part asunder, and the other cord 'will betightened before it breaks, whereby the releasing lcvers will be raised,thereby allowing thc slotted levers and brakes to descend and the latterto be automatically applied to the Wheels of each wagon of the runawayand other portion of the train.

l claim 1- l. In brake actuating mechanism for vehicles, the combinationwith the wheels and bod-y portion ol the vehicle of brake blockssuspended by links from the said body portion, levers for connecting thcbrake blocks on each side of the vehicle together, said levers beingpivoted to a central shaft and levers for operating the brake blockssimultaneously from either side of the vehicle.

2. n brake actuating mechanism for vehicles, the combination of thewheels mounted upon axles, a brake block for each Wheel pendentlysuspended by links from the body of thc vehicle, an adjustable leverattached to the brake block on each side of the vehicle and pivotedtogether at their centers, a central shaft for connecting the saidlevers together and means for operating the brake blocks simultaneously,as set forth.

3. In brake actuating mechanism for vehicles, the combination with thebody portion and Wheels of the vehicle of a brake block Jendentlysuspended by links from the said body portion, adjustable levers pivotedtogether at their centers, whereby the brake blocks on each side of thevehicle are connectcd together, a pair of transverse shafts supported inbearings on the body portion of the`vehicle, and upon one of which thesaid adjustable levers are jointed, three transverse shafts arranged oneabove the other cxtending across the vehicle, upon the lower one ofwhich the said adjustable levers are jointed, a pair of levers mountedrespec tively on one side of the vehicle upon the other two transverseshafts, a second pair of levers mounted on the opposite side of thcvehicle upon a separate spindle, levers attached to the said transverseshafts and links for connecting them respectively to the .last namedpair of levers for operating the brake blocks as set forth.

e. In brake actuating mechanism for vehicles the combination of the bodyportion mounted upon Wheels a brake block for each wheel endentlysuspended by a link from the saiil body portion, adjustable leversconnected together at their centers for attaching the brakes on eachside of the vehicle together, a transverse shaft extending the fullWidth of the vehicle7 to Which the adjustable levers are connected,levers mounted at dis tances apart upon the said shaft, a pair oftransverse shafts mounted at distances apart above the 'first nainedtransverse shaft, one of Which shafts is provided With projecting arms,links for connecting the arnis of the said transverse shafts together,operatinglevers mounted on one side of the vehicle upon the pair oftransverse shafts, a double ended cani inounted upon one of the shaftsand adapted "to engage With a slotted and recessed cani piece forlocking` the brake blocks in or out of position, a second pair of leversmounted upon the opposite side of the vehicle for actuating the brake,as set forth.

5. The combination of three vertical shafts arranged one above the otherat distances apart, 1orackets for attaching thesaid shafts to the bodyof the vehicle,` a cam piece mounted upon the center transverse shaft, aslotted and recessed earn piece having a forked end adapted to engagethe lowest transverse shaft, While the slotted portion of the cain pieceeinhraces the upper transverse shaft, projecting levers mounted andfixed upon each of the said shafts, pair of operating levers niountedupon the upper and center shafts and a second pair of operating leversmounted upon a spindle fixed to the bod)T portion of the vehicle, andlinks for connecting the said levers and shafts together, as set forth..

JAMES EDWARD SCHUMACHER. Witnesses WILLIAM SADLER, ANNIE PARK.

